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katiebugg Group Title

help!?!?!?!

  • 2 years ago
  • 2 years ago

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  1. katiebugg Group Title
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    \[\log _{3}27\]

    • 2 years ago
  2. cwrw238 Group Title
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    this means 3 ^x = 27 x = value of the log

    • 2 years ago
  3. katiebugg Group Title
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    ?

    • 2 years ago
  4. katiebugg Group Title
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    x=3?

    • 2 years ago
  5. cwrw238 Group Title
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    3 ^ 3 = 27 right?

    • 2 years ago
  6. cwrw238 Group Title
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    yes

    • 2 years ago
  7. katiebugg Group Title
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    ok :)

    • 2 years ago
  8. cwrw238 Group Title
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    the definition of a log is the exponent whci takes the base to the given number

    • 2 years ago
  9. katiebugg Group Title
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    wait then whats \[\log _{2} 32\]

    • 2 years ago
  10. cwrw238 Group Title
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    eg 10^2 = 100 so log (10) of 100 = 2

    • 2 years ago
  11. cwrw238 Group Title
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    what power must 2 be taken to in order to get 32s

    • 2 years ago
  12. cwrw238 Group Title
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    * 32?

    • 2 years ago
  13. katiebugg Group Title
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    umm 5?

    • 2 years ago
  14. cwrw238 Group Title
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    right

    • 2 years ago
  15. cwrw238 Group Title
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    are you getting the idea?

    • 2 years ago
  16. katiebugg Group Title
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    kinnda lol i think what would \[\log _{3} 18 \] bee cuz i cant get it

    • 2 years ago
  17. cwrw238 Group Title
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    here 2 ^x = 18 where x = required log now this cant solved by inspection as the other 2 could so you preceed as follows: ln 2^x = ln 18 where ln is natural log or log to base e by laws of logs x ln 2 = ln 18 x = ln 18 / ln 2 which you can do with your calculator

    • 2 years ago
  18. katiebugg Group Title
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    its 3 tho

    • 2 years ago
  19. cwrw238 Group Title
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    oh - r us sure its log2 18 not log2 8?

    • 2 years ago
  20. cwrw238 Group Title
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    because 2^3 = 8

    • 2 years ago
  21. katiebugg Group Title
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    nope log3 18

    • 2 years ago
  22. cwrw238 Group Title
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    log to base 3 of 18

    • 2 years ago
  23. katiebugg Group Title
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    k

    • 2 years ago
  24. cwrw238 Group Title
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    gotta go katie

    • 2 years ago
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